I have the meymoon Lens cap ordered because my husband had unfortunately lost the original cover for our zoom lens in travel. After I had initially considered to order an original cover, I finally came from them and ordered for half price the meymoon product. The quality is no worse than the original lid to my previous experiences. Practically, I find that not only the edge (as with Canon) but by two bulges can solve well the tension lock the lens cap front. Since the lens cap also has a small hole and a string, you can also connect it, if necessary, fixed with the camera, which even my husband would make a renewed losing. ;-)